Optical image capturing system

ABSTRACT

The invention discloses a three-piece optical lens for capturing image and a three-piece optical module for capturing image. In order from an object side to an image side, the optical lens along the optical axis comprises a first lens with positive refractive power; a second lens with refractive power; and a third lens with refractive power; and at least one of the image-side surface and object-side surface of each of the three lens elements are aspheric. The optical lens can increase aperture value and improve the imaging quality for use in compact cameras.

BACKGROUND OF THE INVENTION Technical Field

The present invention relates generally to an optical system, and moreparticularly to a compact optical image capturing system for anelectronic device.

Description of Related Art

In recent years, with the rise of portable electronic devices havingcamera functionalities, the demand for an optical image capturing systemis raised gradually. The image sensing device of the ordinaryphotographing camera is commonly selected from charge coupled device(CCD) or complementary metal-oxide semiconductor sensor (CMOS Sensor).In addition, as advanced semiconductor manufacturing technology enablesthe minimization of the pixel size of the image sensing device, thedevelopment of the optical image capturing system towards the field ofhigh pixels. Therefore, the requirement for high imaging quality israpidly raised.

The conventional optical system of the portable electronic deviceusually has two lenses. However, the optical system is asked to takepictures in a dark environment, or is asked to provide a wide view angleto satisfy the requirement for taking selfies through the front cameraof a portable phone. In other words, the optical system is asked to havea large aperture. However, an optical system having large apertureusually generates aberrations, which causes poor imaging quality atperipheral portions, and also increases the difficulty of manufacturingsuch an optical system. In addition, an optical system with a wide viewangle usually has higher distortion while imaging. The conventionaloptical system could not provide high optical performance as required.

It is an important issue to increase the amount of light entering thelens, and to widen the view angle of an optical image capturing system.In addition, the modern lens is asked not only to contain more totalpixels, to provide higher image quality, but also to balance therequirements for a miniature optical image capturing system.

BRIEF SUMMARY OF THE INVENTION

The aspect of embodiment of the present disclosure directs to an opticalimage capturing system and an optical image capturing lens which usecombination of refractive powers, convex and concave surfaces ofthree-piece optical lenses (the convex or concave surface in thedisclosure denotes the geometrical shape of an image-side surface or anobject-side surface of each lens on an optical axis) to increase theamount of incoming light of the optical image capturing system, widenthe view angle of the optical image capturing system, and to improve thetotal pixels contained in an image and the imaging quality for imageformation, so as to be applied to minimized electronic products.

The terms and definitions thereof related to the lens parameters in theembodiments of the present invention are shown as below for furtherreference.

The lens parameter related to a length or a height in the lens:

A height for image formation of the optical image capturing system isdenoted by HOI. A height of the optical image capturing system isdenoted by HOS. A distance from the object-side surface of the firstlens to the image-side surface of the third lens is denoted by InTL. Adistance between the image-side surface of the third lens and the imageplane is denoted as InB; InTL+InB=HOS; A distance from the first lens tothe second lens is denoted by IN12 (as an example). A central thicknessof the first lens of the optical image capturing system on the opticalaxis is denoted by TP1 (as an example).

The lens parameter related to a material in the lens:

An Abbe number of the first lens in the optical image capturing systemis denoted by NA1 (as an example). A refractive index of the first lensis denoted by Nd1 (as an example).

The lens parameter related to a view angle in the lens:

A view angle is denoted by AF. Half of the view angle is denoted by HAF.A major light angle is denoted by MRA.

The lens parameter related to exit/entrance pupil in the lens:

An entrance pupil diameter of the optical image capturing system isdenoted by HEP. For any surface of any lens, a maximum effective halfdiameter (EHD) is a perpendicular distance between an optical axis and acrossing point on the surface where the incident light with a maximumviewing angle of the system passing the very edge of the entrance pupil.For example, the maximum effective half diameter of the object-sidesurface of the first lens is denoted by EHD11, the maximum effectivehalf diameter of the image-side surface of the first lens is denoted byEHD12, the maximum effective half diameter of the object-side surface ofthe second lens is denoted by EHD21, the maximum effective half diameterof the image-side surface of the second lens is denoted by EHD22, and soon.

The lens parameter related to an arc length of the shape of a surfaceand a surface profile:

For any surface of any lens, a profile curve length of the maximumeffective half diameter is, by definition, measured from a start pointwhere the optical axis of the belonging optical image capturing systempasses through the surface of the lens, along a surface profile of thelens, and finally to an end point of the maximum effective half diameterthereof. In other words, the curve length between the aforementionedstart and end points is the profile curve length of the maximumeffective half diameter, which is denoted by ARS. For example, theprofile curve length of the maximum effective half diameter of theobject-side surface of the first lens is denoted by ARS11, the profilecurve length of the maximum effective half diameter of the image-sidesurface of the first lens is denoted by ARS12, the profile curve lengthof the maximum effective half diameter of the object-side surface of thesecond lens is denoted by ARS21, the profile curve length of the maximumeffective half diameter of the image-side surface of the second lens isdenoted by ARS22, and so on.

For any surface of any lens, a profile curve length of a half of theentrance pupil diameter (HEP) is, by definition, measured from a startpoint where the optical axis of the belonging optical image capturingsystem passes through the surface of the lens, along a surface profileof the lens, and finally to a coordinate point of a perpendiculardistance where is a half of the entrance pupil diameter away from theoptical axis. In other words, the curve length between theaforementioned stat point and the coordinate point is the profile curvelength of a half of the entrance pupil diameter (HEP), and is denoted byARE. For example, the profile curve length of a half of the entrancepupil diameter (HEP) of the object-side surface of the first lens isdenoted by ARE11, the profile curve length of a half of the entrancepupil diameter (HEP) of the image-side surface of the first lens isdenoted by ARE12, the profile curve length of a half of the entrancepupil diameter (HEP) of the object-side surface of the second lens isdenoted by ARE21, the profile curve length of a half of the entrancepupil diameter (HEP) of the image-side surface of the second lens isdenoted by ARE22, and so on.

The lens parameter related to a depth of the lens shape:

A displacement from a point on the object-side surface of the thirdlens, which is passed through by the optical axis, to a point on theoptical axis, where a projection of the maximum effective semi diameterof the object-side surface of the third lens ends, is denoted by InRS31(as an example). A displacement from a point on the image-side surfaceof the third lens, which is passed through by the optical axis, to apoint on the optical axis, where a projection of the maximum effectivesemi diameter of the image-side surface of the third lens ends, isdenoted by InRS32 (as an example).

The lens parameter related to the lens shape:

A critical point C is a tangent point on a surface of a specific lens,and the tangent point is tangent to a plane perpendicular to the opticalaxis and the tangent point cannot be a crossover point on the opticalaxis. By the definition, a distance perpendicular to the optical axisbetween a critical point C21 on the object-side surface of the secondlens and the optical axis is denoted by HVT21 (as an example), and adistance perpendicular to the optical axis between a critical point C22on the image-side surface of the second lens and the optical axis isdenoted by HVT22 (as an example). A distance perpendicular to theoptical axis between a critical point C31 on the object-side surface ofthe third lens and the optical axis is denoted by HVT31 (as an example),and a distance perpendicular to the optical axis between a criticalpoint C32 on the image-side surface of the third lens and the opticalaxis is denoted by HVT32 (as an example). A distance perpendicular tothe optical axis between a critical point on the object-side orimage-side surface of other lenses the optical axis is denoted in thesame manner.

The object-side surface of the third lens has one inflection point IF311which is nearest to the optical axis, and the sinkage value of theinflection point IF311 is denoted by SGI311 (as an example). A distanceperpendicular to the optical axis between the inflection point IF311 andthe optical axis is HIF311 (as an example). The image-side surface ofthe third lens has one inflection point IF321 which is nearest to theoptical axis, and the sinkage value of the inflection point IF321 isdenoted by SGI321 (as an example). A distance perpendicular to theoptical axis between the inflection point IF321 and the optical axis isHIF321 (as an example).

The object-side surface of the third lens has one inflection point IF312which is the second nearest to the optical axis, and the sinkage valueof the inflection point IF312 is denoted by SGI312 (as an example). Adistance perpendicular to the optical axis between the inflection pointIF312 and the optical axis is HIF312 (as an example). The image-sidesurface of the third lens has one inflection point IF322 which is thesecond nearest to the optical axis, and the sinkage value of theinflection point IF322 is denoted by SGI322 (as an example). A distanceperpendicular to the optical axis between the inflection point IF322 andthe optical axis is HIF322 (as an example).

The object-side surface of the third lens has one inflection point IF313which is the third nearest to the optical axis, and the sinkage value ofthe inflection point IF313 is denoted by SGI313 (as an example). Adistance perpendicular to the optical axis between the inflection pointIF313 and the optical axis is HIF313 (as an example). The image-sidesurface of the third lens has one inflection point IF323 which is thethird nearest to the optical axis, and the sinkage value of theinflection point IF323 is denoted by SGI323 (as an example). A distanceperpendicular to the optical axis between the inflection point IF323 andthe optical axis is HIF323 (as an example).

The object-side surface of the third lens has one inflection point IF314which is the fourth nearest to the optical axis, and the sinkage valueof the inflection point IF314 is denoted by SGI314 (as an example). Adistance perpendicular to the optical axis between the inflection pointIF314 and the optical axis is HIF314 (as an example). The image-sidesurface of the third lens has one inflection point IF324 which is thefourth nearest to the optical axis, and the sinkage value of theinflection point IF324 is denoted by SGI324 (as an example). A distanceperpendicular to the optical axis between the inflection point IF324 andthe optical axis is HIF324 (as an example).

An inflection point, a distance perpendicular to the optical axisbetween the inflection point and the optical axis, and a sinkage valuethereof on the object-side surface or image-side surface of other lensesis denoted in the same manner.

The lens parameter related to an aberration:

Optical distortion for image formation in the optical image capturingsystem is denoted by ODT. TV distortion for image formation in theoptical image capturing system is denoted by TDT. Further, the range ofthe aberration offset for the view of image formation may be limited to50%-100% field. An offset of the spherical aberration is denoted by DFS.An offset of the coma aberration is denoted by DFC.

Transverse aberration on an edge of an aperture is denoted by STA, whichstands for STOP transverse aberration, and is used to evaluate theperformance of one specific optical image capturing system. Thetransverse aberration of light in any field of view can be calculatedwith a tangential fan or a sagittal fan. More specifically, thetransverse aberration caused when the longest operation wavelength(e.g., 650 nm) and the shortest operation wavelength (e.g., 470 nm) passthrough the edge of the aperture can be used as the reference forevaluating performance. The coordinate directions of the aforementionedtangential fan can be further divided into a positive direction (upperlight) and a negative direction (lower light). The longest operationwavelength which passes through the edge of the aperture has an imagingposition on the image plane in a particular field of view, and thereference wavelength of the mail light (e.g., 555 nm) has anotherimaging position on the image plane in the same field of view. Thetransverse aberration caused when the longest operation wavelengthpasses through the edge of the aperture is defined as a distance betweenthese two imaging positions. Similarly, the shortest operationwavelength which passes through the edge of the aperture has an imagingposition on the image plane in a particular field of view, and thetransverse aberration caused when the shortest operation wavelengthpasses through the edge of the aperture is defined as a distance betweenthe imaging position of the shortest operation wavelength and theimaging position of the reference wavelength. The performance of theoptical image capturing system can be considered excellent if thetransverse aberrations of the shortest and the longest operationwavelength which pass through the edge of the aperture and image on theimage plane in 0.7 field of view (i.e., 0.7 times the height for imageformation HOT) are both less than 100 μm. Furthermore, for a stricterevaluation, the performance cannot be considered excellent unless thetransverse aberrations of the shortest and the longest operationwavelength which pass through the edge of the aperture and image on theimage plane in 0.7 field of view are both less than 80 μm.

The optical image capturing system has a maximum image height HOI on theimage plane vertical to the optical axis. A transverse aberration at 0.7HOI in the positive direction of the tangential fan after the longestoperation wavelength passing through the edge of the aperture is denotedby PLTA for visible light; a transverse aberration at 0.7 HOI in thepositive direction of the tangential fan after the shortest operationwavelength passing through the edge of the aperture is denoted by PSTAfor visible light; a transverse aberration at 0.7 HOI in the negativedirection of the tangential fan after the longest operation wavelengthpassing through the edge of the aperture is denoted by NLTA for visiblelight; a transverse aberration at 0.7 HOI in the negative direction ofthe tangential fan after the shortest operation wavelength passingthrough the edge of the aperture is denoted by NSTA for visible light; atransverse aberration at 0.7 HOI of the sagittal fan after the longestoperation wavelength passing through the edge of the aperture is denotedby SLTA for visible light; a transverse aberration at 0.7 HOI of thesagittal fan after the shortest operation wavelength passing through theedge of the aperture is denoted by SSTA for visible light.

The present invention provides an optical image capturing system, inwhich the third lens is provided with an inflection point at theobject-side surface or at the image-side surface to adjust the incidentangle of each view field and modify the ODT and the TDT. In addition,the surfaces of the third lens are capable of modifying the optical pathto improve the imagining quality.

The optical image capturing system of the present invention includes afirst lens, a second lens, a third lens, and an image plane in orderalong an optical axis from an object side to an image side. The firstlens has refractive power. The optical image capturing system satisfies:1≤f/HEP≤10; 0 deg<HAF≤50 deg and 0.9≤2(ARE/HEP)≤2.0;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance between an object-side surface on the optical axis, whichface the object side, of the first lens and the image plane; InTL is adistance between the object-side surface of the first lens and theimage-side surface of the third lens on the optical axis; HAF is a halfof a maximum view angle of the optical image capturing system; ARE is aprofile curve length measured from a start point where the optical axisof the belonging optical image capturing system passes through thesurface of the lens, along a surface profile of the lens, and finally toa coordinate point of a perpendicular distance where is a half of theentrance pupil diameter away from the optical axis.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, and animage plane in order along an optical axis from an object side to animage side. The optical image capturing system consists of the threelenses having refractive power. At least one lens among the first lensto the third lens have at least an inflection point on at least asurface thereof. At least one lens between the second lens and the thirdlens has positive refractive power. The optical image capturing systemsatisfies:1≤f/HEP≤10; 0 deg<HAF≤50 deg; and 0.9≤2(ARE/HEP)≤2.0;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance between an object-side surface, which face the object side,of the first lens and the image plane on the optical axis; InTL is adistance between the object-side surface of the first lens and theimage-side surface of the third lens on the optical axis; HAF is a halfof a maximum view angle of the optical image capturing system; ARE is aprofile curve length measured from a start point where the optical axisof the belonging optical image capturing system passes through thesurface of the lens, along a surface profile of the lens, and finally toa coordinate point of a perpendicular distance where is a half of theentrance pupil diameter away from the optical axis.

The present invention further provides an optical image capturingsystem, including a first lens, a second lens, a third lens, and animage plane, in order along an optical axis from an object side to animage side. The number of the lenses having refractive power in theoptical image capturing system is three. Each of at least one lens amongthe first to the third lenses has at least an inflection point on atleast one surface thereof. The optical image capturing system satisfies:1≤f/HEP≤10; 10 deg≤HAF≤50 deg and 0.9≤2(ARE/HEP)≤2.0;

where f is a focal length of the optical image capturing system; HEP isan entrance pupil diameter of the optical image capturing system; HOS isa distance between an object-side surface, which face the object side,of the first lens and the image plane on the optical axis; InTL is adistance between the object-side surface of the first lens and theimage-side surface of the third lens on the optical axis; HAF is a halfof a maximum view angle of the optical image capturing system; ARE is aprofile curve length measured from a start point where the optical axisof the belonging optical image capturing system passes through thesurface of the lens, along a surface profile of the lens, and finally toa coordinate point of a perpendicular distance where is a half of theentrance pupil diameter away from the optical axis.

For any surface of any lens, the profile curve length within theeffective half diameter affects the ability of the surface to correctaberration and differences between optical paths of light in differentfields of view. With longer profile curve length, the ability to correctaberration is better. However, the difficulty of manufacturing increasesas well. Therefore, the profile curve length within the effective halfdiameter of any surface of any lens has to be controlled. The ratiobetween the profile curve length (ARS) within the effective halfdiameter of one surface and the thickness (TP) of the lens, which thesurface belonged to, on the optical axis (i.e., ARS/TP) has to beparticularly controlled. For example, the profile curve length of themaximum effective half diameter of the object-side surface of the firstlens is denoted by ARS11, the thickness of the first lens on the opticalaxis is TP1, and the ratio between these two parameters is ARS11/TP1;the profile curve length of the maximum effective half diameter of theimage-side surface of the first lens is denoted by ARS12, and the ratiobetween ARS12 and TP1 is ARS12/TP1. The profile curve length of themaximum effective half diameter of the object-side surface of the secondlens is denoted by ARS21, the thickness of the second lens on theoptical axis is TP2, and the ratio between these two parameters isARS21/TP2; the profile curve length of the maximum effective halfdiameter of the image-side surface of the second lens is denoted byARS22, and the ratio between ARS22 and TP2 is ARS22/TP2. For any surfaceof other lenses in the optical image capturing system, the ratio betweenthe profile curve length of the maximum effective half diameter thereofand the thickness of the lens which the surface belonged to is denotedin the same manner.

For any surface of any lens, the profile curve length within a half ofthe entrance pupil diameter (HEP) affects the ability of the surface tocorrect aberration and differences between optical paths of light indifferent fields of view. With longer profile curve length, the abilityto correct aberration is better. However, the difficulty ofmanufacturing increases as well. Therefore, the profile curve lengthwithin a half of the entrance pupil diameter (HEP) of any surface of anylens has to be controlled. The ratio between the profile curve length(ARE) within a half of the entrance pupil diameter (HEP) of one surfaceand the thickness (TP) of the lens, which the surface belonged to, onthe optical axis (i.e., ARE/TP) has to be particularly controlled. Forexample, the profile curve length of a half of the entrance pupildiameter (HEP) of the object-side surface of the first lens is denotedby ARE11, the thickness of the first lens on the optical axis is TP1,and the ratio between these two parameters is ARE11/TP1; the profilecurve length of a half of the entrance pupil diameter (HEP) of theimage-side surface of the first lens is denoted by ARE12, and the ratiobetween ARE12 and TP1 is ARE12/TP1. The profile curve length of a halfof the entrance pupil diameter (HEP) of the object-side surface of thesecond lens is denoted by ARE21, the thickness of the second lens on theoptical axis is TP2, and the ratio between these two parameters isARE21/TP2; the profile curve length of a half of the entrance pupildiameter (HEP) of the image-side surface of the second lens is denotedby ARE22, and the ratio between ARE22 and TP2 is ARE22/TP2. For anysurface of other lenses in the optical image capturing system, the ratiobetween the profile curve length of a half of the entrance pupildiameter (HEP) thereof and the thickness of the lens which the surfacebelonged to is denoted in the same manner.

The optical image capturing system could be applied with an image sensorof which the image size is less than 1/1.2 inches in diagonal. Pixelsize of said image sensor is less than 1.4 μm, which is preferred to beless than 1.12 μm, and is most preferred to be less than 0.9 μm. Inaddition, the optical image capturing system would be compatible with animage sensor of which aspect ratio is 16:9.

Said optical image capturing system could meet the requirement forrecording megapixel videos, and could provide good image quality.

In an embodiment, a height of the optical image capturing system (HOS)can be reduced while |f1|>f3.

In an embodiment, the second lens could have weak positive refractivepower or weak negative refractive power when |f2|>|f1|. When the secondlens has weak positive refractive power, it may share the positiverefractive power of the first lens, and on the contrary, when the secondlens has weak negative refractive power, it may fine turn and correctthe aberration of the system.

In an embodiment, the third lens could have positive refractive power,and an image-side surface thereof is concave, it may reduce back focallength and size. Besides, the third lens can have at least an inflectionpoint on at least a surface thereof, which may reduce an incident angleof the light of an off-axis field of view and correct the aberration ofthe off-axis field of view.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The present invention will be best understood by referring to thefollowing detailed description of some illustrative embodiments inconjunction with the accompanying drawings, in which

FIG. 1A is a schematic diagram of a first embodiment of the presentinvention;

FIG. 1B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the first embodiment of thepresent application;

FIG. 1C shows a tangential fan and a sagittal fan of the optical imagecapturing system of the first embodiment of the present application, anda transverse aberration diagram at 0.7 field of view when a longestoperation wavelength and a shortest operation wavelength pass through anedge of an aperture;

FIG. 2A is a schematic diagram of a second embodiment of the presentinvention;

FIG. 2B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the second embodiment of thepresent application;

FIG. 2C shows a tangential fan and a sagittal fan of the optical imagecapturing system of the second embodiment of the present application,and a transverse aberration diagram at 0.7 field of view when a longestoperation wavelength and a shortest operation wavelength pass through anedge of an aperture;

FIG. 3A is a schematic diagram of a third embodiment of the presentinvention;

FIG. 3B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the third embodiment of thepresent application;

FIG. 3C shows a tangential fan and a sagittal fan of the optical imagecapturing system of the third embodiment of the present application, anda transverse aberration diagram at 0.7 field of view when a longestoperation wavelength and a shortest operation wavelength pass through anedge of an aperture;

FIG. 4A is a schematic diagram of a fourth embodiment of the presentinvention;

FIG. 4B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fourth embodiment of thepresent application;

FIG. 4C shows a tangential fan and a sagittal fan of the optical imagecapturing system of the fourth embodiment of the present application,and a transverse aberration diagram at 0.7 field of view when a longestoperation wavelength and a shortest operation wavelength pass through anedge of an aperture;

FIG. 5A is a schematic diagram of a fifth embodiment of the presentinvention;

FIG. 5B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the fifth embodiment of thepresent application;

FIG. 5C shows a tangential fan and a sagittal fan of the optical imagecapturing system of the fifth embodiment of the present application, anda transverse aberration diagram at 0.7 field of view when a longestoperation wavelength and a shortest operation wavelength pass through anedge of an aperture;

FIG. 6A is a schematic diagram of a sixth embodiment of the presentinvention;

FIG. 6B shows curve diagrams of longitudinal spherical aberration,astigmatic field, and optical distortion of the optical image capturingsystem in the order from left to right of the sixth embodiment of thepresent application; and

FIG. 6C shows a tangential fan and a sagittal fan of the optical imagecapturing system of the sixth embodiment of the present application, anda transverse aberration diagram at 0.7 field of view when a longestoperation wavelength and a shortest operation wavelength pass through anedge of an aperture.

DETAILED DESCRIPTION OF THE INVENTION

An optical image capturing system of the present invention includes afirst lens, a second lens, and a third lens from an object side to animage side. The optical image capturing system further is provided withan image sensor at an image plane.

The optical image capturing system can also work in five wavelengths,including 470 nm, 510 nm, 555 nm, 610 nm, and 650 nm wherein 555 nm isthe main reference wavelength, and is the reference wavelength forobtaining the technical characters. Referring to obtaining the values oflateral aberration while the longest operation wavelength and theshortest operation wavelength passing through the margin of theaperture, the longest operation wavelength is set as 650 nm, the mainwavelength of light of the reference wavelength is set as 555 nm, andthe shortest operation wavelength is set as 470 nm.

The optical image capturing system of the present invention satisfies0.5≤ΣPPR/|ΣNPR|≤4.5, and a preferable range is 1≤ΣPPR/|ΣNPR|3.8, wherePPR is a ratio of the focal length f of the optical image capturingsystem to a focal length fp of each of lenses with positive refractivepower; NPR is a ratio of the focal length f of the optical imagecapturing system to a focal length fn of each of lenses with negativerefractive power; ΣPPR is a sum of the PPRs of each positive lens; andΣNPR is a sum of the NPRs of each negative lens. It is helpful forcontrol of an entire refractive power and an entire length of theoptical image capturing system.

The height of the optical image capturing system is denoted by HOS. WhenHOS/f is close to 1, it would help to manufacture a miniaturized opticalimage capturing system capable of providing images of hyper-rich pixels.

A sum of the focal lengths fp of each lens with positive refractivepower in the optical image capturing system is denoted by ΣPP, while asum of each lens with negative refractive power in the optical imagecapturing system is denoted by ΣNP. In an embodiment, the optical imagecapturing system satisfies the condition: 0<ΣPP≤200; and f1/ΣPP≤0.85.Whereby, the focusing ability of the optical image capturing systemcould be controlled. Furthermore, the positive refractive power of thesystem could be properly distributed to suppress obvious aberration fromhappening too early. The first lens has positive refractive power, andan object-side surface thereof could be convex. Whereby, the strength ofthe positive refractive power of the first lens could be properlyadjusted, which helps to shorten a total length of the optical imagecapturing system.

The second lens could have negative refractive power, which helps tocompensate the aberration generated by the first lens.

The third lens could have positive refractive power, and an image-sidesurface thereof could be concave. Whereby, the positive refractive powerof the first lens could be shard, and it would help to shorten the rearfocal length to maintain miniature. In addition, at least a surface ofthird lens could have at least an inflection point, which couldeffectively suppress the incidence angle of light in the off-axis fieldof view, and further correct the aberration in the off-axis field ofview. Preferably, an object-side surface and the image-side surfacethereof both have at least an inflection point.

The image sensor is provided on the image plane. The optical imagecapturing system of the present invention satisfies HOS/HOI≤3 and0.5≤HOS/f≤3.0, and a preferable range is 1≤HOS/HOI≤2.5 and 1≤HOS/f≤2,where HOI is a half of a diagonal of an effective sensing area of theimage sensor, i.e., the maximum image height, and HOS is a height of theoptical image capturing system, i.e. a distance on the optical axisbetween the object-side surface of the first lens and the image plane.It is helpful for reduction of the size of the system for used incompact cameras.

The optical image capturing system of the present invention further isprovided with an aperture to increase image quality.

In the optical image capturing system of the present invention, theaperture could be a front aperture or a middle aperture, wherein thefront aperture is provided between the object and the first lens, andthe middle is provided between the first lens and the image plane. Thefront aperture provides a long distance between an exit pupil of thesystem and the image plane, which allows more elements to be installed.The middle could enlarge a view angle of view of the system and increasethe efficiency of the image sensor. The optical image capturing systemsatisfies 0.5≤InS/HOS≤1.1, where InS is a distance between the apertureand the image plane. Preferably, the optical image capturing systemsatisfies 0.6≤InS/HOS≤1. It is helpful for size reduction and wideangle.

The optical image capturing system of the present invention satisfies0.45≤ΣTP/InTL≤0.95, where InTL is a distance between the object-sidesurface of the first lens and the image-side surface of the third lens,and ΣTP is a sum of central thicknesses of the lenses on the opticalaxis. It is helpful for the contrast of image and yield rate ofmanufacture and provides a suitable back focal length for installationof other elements.

The optical image capturing system of the present invention satisfies0.1≤|R1/R2|≤3.0, and a preferable range is 0.1≤|R1/R2|≤2.0, where R1 isa radius of curvature of the object-side surface of the first lens, andR2 is a radius of curvature of the image-side surface of the first lens.It provides the first lens with a suitable positive refractive power toreduce the increase rate of the spherical aberration.

The optical image capturing system of the present invention satisfies−200<(R5−R6)/(R5+R6)<30, where R5 is a radius of curvature of theobject-side surface of the third lens, and R6 is a radius of curvatureof the image-side surface of the third lens. It may modify theastigmatic field curvature.

The optical image capturing system of the present invention satisfies0<IN12/f≤0.30, where IN12 is a distance on the optical axis between thefirst lens and the second lens. Preferably, the optical image capturingsystem satisfies 0.01≤IN12/f≤0.2.5 It may correct chromatic aberrationand improve the performance.

The optical image capturing system of the present invention satisfiesIN23/f≤0.25, where IN23 is a distance on the optical axis between thesecond lens and the third lens. It may correct chromatic aberration andimprove the performance.

The optical image capturing system of the present invention satisfies2≤(TP1+IN12)/TP2≤10, where TP1 is a central thickness of the first lenson the optical axis, and TP2 is a central thickness of the second lenson the optical axis. It may control the sensitivity of manufacture ofthe system and improve the performance.

The optical image capturing system of the present invention satisfies1.0≤(TP3+IN23)/TP2≤10, where TP3 is a central thickness of the thirdlens on the optical axis, and IN23 is a distance between the second lensand the third lens. It may control the sensitivity of manufacture of thesystem and improve the performance.

The optical image capturing system of the present invention satisfies0.1≤TP1/TP2≤0.6; 0.1≤TP2/TP3≤0.6. It may fine tune and correct theaberration of the incident rays layer by layer, and reduce the height ofthe system.

The optical image capturing system 10 of the first embodiment furthersatisfies −1 mm≤InRS31≤1 mm; −1 mm≤InRS32≤1 mm; 1 mm≤|InRS31|+|InRS32|≤2mm; 0.01≤|InRS31|/TP3≤10; 0.01|InRS32|/TP3≤10, where InRS31 is adisplacement from a point on the object-side surface of the third lens,which is passed through by the optical axis, to a point on the opticalaxis, where a projection of the maximum effective semi diameter of theobject-side surface of the third lens ends (if the displacement on theoptical axis moves towards the image side, then InRS31 is a positivevalue; if the displacement on the optical axis moves towards the objectside, then InRS31 is a negative value); InRS32 is a displacement from apoint on the image-side surface of the third lens, which is passedthrough by the optical axis, to a point on the optical axis, where aprojection of the maximum effective semi diameter of the image-sidesurface of the third lens ends; and TP3 is a central thickness of thethird lens on the optical axis. Whereby, a location of the maximumeffective semi diameter between two surfaces of the third lens could becontrolled, which helps to correct the aberration of the peripheral viewfield of the optical image capturing system, and to maintain miniature.

The optical image capturing system of the present invention satisfies0<SGI311/(SGI311+TP3)≤0.9; 0<SGI321/(SGI321+TP3)≤0.9, and it ispreferable to satisfy 0.01<SGI311/(SGI311+TP3)≤0.7;0.01<SGI321/(SGI321+TP3)≤0.7, where SGI311 is a displacement in parallelwith the optical axis, from a point on the object-side surface of thethird lens, through which the optical axis passes, to the inflectionpoint on the object-side surface, which is the closest to the opticalaxis, and SGI321 is a displacement in parallel with the optical axis,from a point on the image-side surface of the third lens, through whichthe optical axis passes, to the inflection point on the image-sidesurface, which is the closest to the optical axis.

The optical image capturing system of the present invention satisfies0<SGI312/(SGI312+TP3)≤0.9; 0<SGI322/(SGI322+TP3)≤0.9, and it ispreferable to satisfy 0.1≤SGI312/(SGI312+TP3)≤0.8;0.1≤SGI322/(SGI322+TP3)≤0.8, where SGI312 is a displacement in parallelwith the optical axis, from a point on the object-side surface of thethird lens, through which the optical axis passes, to the inflectionpoint on the object-side surface, which is the second closest to theoptical axis, and SGI322 is a displacement in parallel with the opticalaxis, from a point on the image-side surface of the third lens, throughwhich the optical axis passes, to the inflection point on the image-sidesurface, which is the second closest to the optical axis.

The optical image capturing system of the present invention satisfies0.01≤HIF311/HOI≤0.9; 0.01≤HIF321/HOI≤0.9, and it is preferable tosatisfy 0.09≤HIF311/HOI≤0.5; 0.09≤HIF321/HOI≤0.5, where HIF311 is adistance perpendicular to the optical axis between the inflection pointon the object-side surface of the third lens, which is the closest tothe optical axis, and the optical axis; HIF321 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the third lens, which is the closest to theoptical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.01≤HIF312/HOI≤0.9; 0.01≤HIF322/HOI≤0.9, and it is preferable tosatisfy 0.09≤HIF312/HOI≤0.8; 0.09≤HIF322/HOI≤0.8, where HIF312 is adistance perpendicular to the optical axis between the inflection pointon the object-side surface of the third lens, which is the secondclosest to the optical axis, and the optical axis; HIF322 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the third lens, which is the second closest to theoptical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≤|HIF313|≤5 mm; 0.001 mm≤|HIF323|≤5 mm, and it is preferable tosatisfy 0.1 mm≤|HIF323|≤3.5 mm; 0.1 mm≤|HIF313|≤3.5 mm, where HIF313 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the third lens, which is the thirdclosest to the optical axis, and the optical axis; HIF323 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the third lens, which is the third closest to theoptical axis, and the optical axis.

The optical image capturing system of the present invention satisfies0.001 mm≤|HIF314|≤5 mm; 0.001 mm≤|HIF324|≤5 mm, and it is preferable tosatisfy 0.1 mm≤|HIF324|≤3.5 mm; 0.1 mm≤|HIF314|≤3.5 mm, where HIF314 isa distance perpendicular to the optical axis between the inflectionpoint on the object-side surface of the third lens, which is the fourthclosest to the optical axis, and the optical axis; HIF324 is a distanceperpendicular to the optical axis between the inflection point on theimage-side surface of the third lens, which is the fourth closest to theoptical axis, and the optical axis.

In an embodiment, the lenses of high Abbe number and the lenses of lowAbbe number are arranged in an interlaced arrangement that could behelpful for correction of aberration of the system.

An equation of aspheric surface isz=ch ²/[1+[1−(k+1)c ² h ²]^(0.5)]+A4h ⁴ +A6h ⁶ +A8h ⁸ +A10h ¹⁰ +A12h ¹²+A14h ¹⁴ +A16h ¹⁶ +A18h ¹⁸ +A20h ²⁰+  (1)

where z is a depression of the aspheric surface; k is conic constant; cis reciprocal of the radius of curvature; and A4, A6, A8, A10, A12, A14,A16, A18, and A20 are high-order aspheric coefficients.

In the optical image capturing system, the lenses could be made ofplastic or glass. The plastic lenses may reduce the weight and lower thecost of the system, and the glass lenses may control the thermal effectand enlarge the space for arrangement of the refractive power of thesystem. In addition, the opposite surfaces (object-side surface andimage-side surface) of the first to the third lenses could be asphericthat can obtain more control parameters to reduce aberration. The numberof aspheric glass lenses could be less than the conventional sphericalglass lenses, which is helpful for reduction of the height of thesystem.

When the lens has a convex surface, which means that the surface isconvex around a position, through which the optical axis passes, andwhen the lens has a concave surface, which means that the surface isconcave around a position, through which the optical axis passes.

In addition, the optical image capturing system of the present inventioncould be further provided with at least an stop as required, which couldreduce stray light to improve the imaging quality.

In the optical image capturing system of the present invention, theaperture could be a front aperture or a middle aperture, wherein thefront aperture is provided between the object and the first lens, andthe middle is provided between the first lens and the image plane. Thefront aperture provides a long distance between an exit pupil of thesystem and the image plane, which allows more elements to be installed.The middle could enlarge a view angle of view of the system and increasethe efficiency of the image sensor.

The optical image capturing system of the present invention could beapplied in a dynamic focusing optical system. It is superior in thecorrection of aberration and high imaging quality so that it could beallied in lots of fields.

The optical image capturing system of the present invention couldfurther include a driving module to meet different demands, wherein thedriving module can be coupled with the lenses to move the lenses. Thedriving module can be a voice coil motor (VCM), which is used to movethe lens for focusing, or can be an optical image stabilization (OIS)component, which is used to lower the possibility of having the problemof image blurring which is caused by subtle movements of the lens whileshooting.

To meet different requirements, at least one lens among the first lensto the third lens of the optical image capturing system of the presentinvention can be a light filter, which filters out light of wavelengthshorter than 500 nm. Such effect can be achieved by coating on at leastone surface of the lens, or by using materials capable of filtering outshort waves to make the lens.

To meet different requirements, the image plane of the optical imagecapturing system in the present invention can be either flat or curved.If the image plane is curved (e.g., a sphere with a radius ofcurvature), the incidence angle required for focusing light on the imageplane can be decreased, which is not only helpful to shorten the lengthof the system (TTL), but also helpful to increase the relativeilluminance.

We provide several embodiments in conjunction with the accompanyingdrawings for the best understanding, which are:

First Embodiment

As shown in FIG. 1A and FIG. 1B, an optical image capturing system 10 ofthe first embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 110, an aperture100, a second lens 120, a third lens 130, an infrared rays filter 170,an image plane 180, and an image sensor 190. FIG. 1C shows a tangentialfan and a sagittal fan of the optical image capturing system 10 of thefirst embodiment of the present application, and a transverse aberrationdiagram at 0.7 field of view when a longest operation wavelength and ashortest operation wavelength pass through an edge of the aperture 100.

The first lens 110 has positive refractive power and is made of plastic.An object-side surface 112 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 114 thereof, whichfaces the image side, is a concave aspheric surface. A profile curvelength of the maximum effective half diameter of an object-side surfaceof the first lens 110 is denoted by ARS11, and a profile curve length ofthe maximum effective half diameter of the image-side surface of thefirst lens 110 is denoted by ARS12. A profile curve length of a half ofan entrance pupil diameter (HEP) of the object-side surface of the firstlens 110 is denoted by ARE11, and a profile curve length of a half ofthe entrance pupil diameter (HEP) of the image-side surface of the firstlens 110 is denoted by ARE12. A thickness of the first lens 110 on theoptical axis is TP1.

The second lens 120 has negative refractive power and is made ofplastic. An object-side surface 122 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 124thereof, which faces the image side, is a convex aspheric surface. Theimage-side surface 124 has an inflection point. The second lenssatisfies SGI221=−0.1526 mm; |SGI221|/(|SGI221|+TP2)=0.2292, whereSGI221 is a displacement in parallel with the optical axis from a pointon the image-side surface of the second lens, through which the opticalaxis passes, to the inflection point on the image-side surface closestto the optical axis. A profile curve length of the maximum effectivehalf diameter of an object-side surface of the second lens 120 isdenoted by ARS21, and a profile curve length of the maximum effectivehalf diameter of the image-side surface of the second lens 120 isdenoted by ARS22. A profile curve length of a half of an entrance pupildiameter (HEP) of the object-side surface of the second lens 120 isdenoted by ARE21, and a profile curve length of a half of the entrancepupil diameter (HEP) of the image-side surface of the second lens 120 isdenoted by ARS22. A thickness of the second lens 120 on the optical axisis TP2.

The second lens satisfies HIF221=0.5606 mm; HIF221/HOI=0.3128, where adisplacement perpendicular to the optical axis from a point on theimage-side surface of the second lens, through which the optical axispasses, to the inflection point closest to the optical axis is denotedby HIF221.

The third lens 130 has positive refractive power and is made of plastic.An object-side surface 132, which faces the object side, is a convexaspheric surface, and an image-side surface 134, which faces the imageside, is a concave aspheric surface. The object-side surface 132 has twoinflection points, and the image-side surface 134 has an inflectionpoint. The third lens 130 satisfies SGI311=0.0180 mm; SGI321=0.0331 mm;|SGI311|/(|SGI311|+TP3)=0.0339; |SGI321|/(|SGI321|+TP3)=0.0605, whereSGI311 is a displacement in parallel with the optical axis, from a pointon the object-side surface of the third lens, through which the opticalaxis passes, to the inflection point on the object-side surface, whichis the closest to the optical axis, and SGI321 is a displacement inparallel with the optical axis, from a point on the image-side surfaceof the third lens, through which the optical axis passes, to theinflection point on the image-side surface, which is the closest to theoptical axis. A profile curve length of the maximum effective halfdiameter of an object-side surface of the third lens 130 is denoted byARS31, and a profile curve length of the maximum effective half diameterof the image-side surface of the third lens 130 is denoted by ARS32. Aprofile curve length of a half of an entrance pupil diameter (HEP) ofthe object-side surface of the third lens 130 is denoted by ARE31, and aprofile curve length of a half of the entrance pupil diameter (HEP) ofthe image-side surface of the third lens 130 is denoted by ARS32. Athickness of the third lens 130 on the optical axis is TP3.

The third lens 130 satisfies SGI312=−0.0367 mm;|SGI312|/(|SGI312|+TP3)=0.0668, where SGI312 is a displacement inparallel with the optical axis, from a point on the object-side surfaceof the third lens, through which the optical axis passes, to theinflection point on the object-side surface second closest to theoptical axis.

The third lens 130 further satisfies HIF311=0.2298 mm; HIF321=0.3393 mm;HIF311/HOI=0.1282; HIF321/HOI=0.1893, where HIF311 is a distanceperpendicular to the optical axis between the inflection point on theobject-side surface of the third lens, which is the closest to theoptical axis, and the optical axis; HIF321 is a distance perpendicularto the optical axis between the inflection point on the image-sidesurface of the third lens, which is the closest to the optical axis, andthe optical axis.

The third lens 130 satisfies HIF312=0.8186 mm; HIF312/HOI=0.4568, whereHIF312 is a distance perpendicular to the optical axis between theinflection point on the object-side surface of the third lens secondclosest to the optical axis and the optical axis.

The infrared rays filter 170 is made of glass and between the third lens130 and the image plane 180. The infrared rays filter 170 gives nocontribution to the focal length of the system.

The optical image capturing system 10 of the first embodiment has thefollowing parameters, which are f=2.42952 mm; f/HEP=2.02; and HAF=35.87degrees; and tan(HAF)=0.7231, where f is a focal length of the system;HAF is a half of the maximum field angle; and HEP is an entrance pupildiameter.

The parameters of the lenses of the first embodiment are f1=2.27233 mm;|f/f1|=1.0692; f3=7.0647 mm; f3; and |f1/f3|=0.3216, where f1 is a focallength of the first lens 110; and f3 is a focal length of the third lens130.

The first embodiment further satisfies f2=−5.2251 mm; and |f2|>|f1|,where f2 is a focal length of the second lens 120, and f3 is a focallength of the third lens 130.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣPPR=f/f1+f/f3=1.4131; ΣNPR=f/f2=0.4650; ΣPPR/|ΣNPR|=3.0391;|f/f3|=0.3439; |f1/f2|=0.4349; |f2/f3|=0.7396, where PPR is a ratio of afocal length f of the optical image capturing system to a focal lengthfp of each of the lenses with positive refractive power; and NPR is aratio of a focal length fn of the optical image capturing system to afocal length fn of each of lenses with negative refractive power.

The optical image capturing system 10 of the first embodiment furthersatisfies InTL+InB=HOS; HOS=2.9110 mm; HOI=1.792 mm; HOS/HOI=1.6244;HOS/f=1.1982; InTL/HOS=0.7008; InS=2.25447 mm; and InS/HOS=0.7745, whereInTL is a distance between the object-side surface 112 of the first lens110 and the image-side surface 134 of the third lens 130; HOS is aheight of the image capturing system, i.e. a distance between theobject-side surface 112 of the first lens 110 and the image plane 180;InS is a distance between the aperture 100 and the image plane 180; HOIis a half of a diagonal of an effective sensing area of the image sensor190, i.e., the maximum image height; and InB is a distance between theimage-side surface 134 of the third lens 130 and the image plane 180.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣTP=1.4198 mm; and ΣTP/InTL=0.6959, where ΣTP is a sum of thethicknesses of the lenses 110-130 with refractive power. It is helpfulfor the contrast of image and yield rate of manufacture and provides asuitable back focal length for installation of other elements.

The optical image capturing system 10 of the first embodiment furthersatisfies |R1/R2|=0.3849, where R1 is a radius of curvature of theobject-side surface 112 of the first lens 110, and R2 is a radius ofcurvature of the image-side surface 114 of the first lens 110. Itprovides the first lens with a suitable positive refractive power toreduce the increase rate of the spherical aberration.

The optical image capturing system 10 of the first embodiment furthersatisfies (R5−R6)/(R5+R6)=−0.0899, where R5 is a radius of curvature ofthe object-side surface 132 of the third lens 130, and R6 is a radius ofcurvature of the image-side surface 134 of the third lens 130. It maymodify the astigmatic field curvature.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣPP=f1+f3=9.3370 mm; and f1/(f1+f3)=0.2434, where ΣPP is a sumof the focal lengths fp of each lens with positive refractive power. Itis helpful to share the positive refractive power of the first lens 110to the other positive lens to avoid the significant aberration caused bythe incident rays.

The optical image capturing system 10 of the first embodiment furthersatisfies ΣNP=f2=−5.2251 mm, where ΣNP is a sum of the focal length fnof each lens with negative refractive power. It is helpful to avoid thesignificant aberration caused by the incident rays.

The optical image capturing system 10 of the first embodiment furthersatisfies IN12=0.4068 mm; IN12/f=0.1674, where IN12 is a distance on theoptical axis between the first lens 110 and the second lens 120. It maycorrect chromatic aberration and improve the performance.

The optical image capturing system 10 of the first embodiment furthersatisfies TP1=0.5132 mm; TP2=0.3363 mm; and (TP1+IN12)/TP2=2.7359, whereTP1 is a central thickness of the first lens 110 on the optical axis,and TP2 is a central thickness of the second lens 120 on the opticalaxis. It may control the sensitivity of manufacture of the system andimprove the performance.

The optical image capturing system 10 of the first embodiment furthersatisfies (TP3+IN23)/TP2=2.3308, where TP3 is a central thickness of thethird lens 130 on the optical axis, and IN23 is a distance on theoptical axis between the first lens 110 and the second lens 120. It maycontrol the sensitivity of manufacture of the system and lower the totalheight of the system.

The optical image capturing system 10 of the first embodiment furthersatisfies TP2/(IN12+TP2+IN23)=0.35154; TP1/TP2=1.52615; TP2/TP3=0.58966.It may control the sensitivity of manufacture of the system and lowerthe total height of the system.

The optical image capturing system of the present invention satisfiesTP2/ΣTP=0.2369, where ΣTP is a sum of central thicknesses of the firstlens 110 to the third lens 130 on the optical axis. It may fine tune andcorrect the aberration of the incident rays, and reduce the height ofthe system.

The optical image capturing system 10 of the first embodiment furthersatisfies InRS31=−0.1097 mm; InRS32=−0.3195 mm;|InRS31|+|InRS32|=0.42922 mm; |InRS31|/TP3=0.1923; and|InRS32|/TP3=0.5603, where InRS31 is a displacement from a point on theobject-side surface 132 of the third lens 130 passed through by theoptical axis to a point on the optical axis where a projection of themaximum effective semi diameter of the object-side surface 132 of thethird lens 130 ends; InRS32 is a displacement from a point on theimage-side surface 134 of the third lens 130 passed through by theoptical axis to a point on the optical axis where a projection of themaximum effective semi diameter of the image-side surface 134 of thethird lens 130 ends; and TP3 is a central thickness of the third lens130 on the optical axis. It is helpful for manufacturing and shaping ofthe lenses and is helpful to reduce the size.

The optical image capturing system 10 of the first embodiment furthersatisfies HVT31=0.4455 mm; HVT32=0.6479 mm; HVT31/HVT32=0.6876, whereHVT31 is a distance perpendicular to the optical axis between thecritical point C31 on the object-side surface 132 of the third lens andthe optical axis; and HVT32 is a distance perpendicular to the opticalaxis between the critical point C32 on the image-side surface 134 of thethird lens and the optical axis.

The optical image capturing system 10 of the first embodiment satisfiesHVT32/HOI=0.3616. It is helpful for correction of the aberration of theperipheral view field of the optical image capturing system.

The optical image capturing system 10 of the first embodiment satisfiesHVT32/HOS=0.2226. It is helpful for correction of the aberration of theperipheral view field of the optical image capturing system.

The second lens 120 and the third lens 130 have negative refractivepower. The optical image capturing system 10 of the first embodimentfurther satisfies |NA1−NA2|=33.5951; NA3/NA2=2.4969, where NA1 is anAbbe number of the first lens 110; NA2 is an Abbe number of the secondlens 120; and NA3 is an Abbe number of the third lens 130. It maycorrect the aberration of the optical image capturing system.

The optical image capturing system 10 of the first embodiment furthersatisfies |TDT|=1.2939%; |ODT|=1.4381%, where TDT is TV distortion; andODT is optical distortion.

For the third lens 130 of the optical image capturing system 10 in thefirst embodiment, a transverse aberration at 0.7 field of view in thepositive direction of the tangential fan after the longest operationwavelength passing through the edge of the aperture 100 is denoted byPLTA, and is 0.0028 mm (pixel size is 1.12 μm); a transverse aberrationat 0.7 field of view in the positive direction of the tangential fanafter the shortest operation wavelength passing through the edge of theaperture 100 is denoted by PSTA, and is 0.0163 mm (pixel size is 1.12μm); a transverse aberration at 0.7 field of view in the negativedirection of the tangential fan after the longest operation wavelengthpassing through the edge of the aperture 100 is denoted by NLTA, and is0.0118 mm (pixel size is 1.12 μm); a transverse aberration at 0.7 fieldof view in the negative direction of the tangential fan after theshortest operation wavelength passing through the edge of the aperture100 is denoted by NSTA, and is −0.0019 mm (pixel size is 1.12 μm); atransverse aberration at 0.7 field of view of the sagittal fan after thelongest operation wavelength passing through the edge of the aperture100 is denoted by SLTA, and is −0.0103 mm (pixel size is 1.12 μm); atransverse aberration at 0.7 field of view of the sagittal fan after theshortest operation wavelength passing through the edge of the aperture100 is denoted by SSTA, and is 0.0055 mm (pixel size is 1.12 μm).

The parameters of the lenses of the first embodiment are listed in Table1 and Table 2.

TABLE 1 f = 2.42952 mm; f/HEP = 2.02; HAF = 35.87 deg; tan(HAF) = 0.7231Radius of curvature Thickness Refractive Abbe Focal length Surface (mm)(mm) Material index number (mm) 0 Object plane 600 1 1^(st) lens0.848804821 0.513 plastic 1.535 56.070 2.273 2 2.205401548 0.143 3Aperture plane 0.263 4 2^(nd) lens −1.208297825  0.336 plastic 1.64322.470 −5.225 5 −2.08494476  0.214 6 3^(rd) lens 1.177958479 0.570plastic 1.544 56.090 7.012 7 1.410696843 0.114 8 Infrared plane 0.210BK7_SCHOTT rays filter 9 plane 0.550 10 Image plane 0.000 planeReference wavelength: 555 mm; the position of blocking light: the clearaperture of the first surface is 0.640 mm

TABLE 2 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 k1.22106E−01 1.45448E+01 8.53809E−01 4.48992E−01 −1.44104E+01−3.61090E+00 A4 −6.43320E−04  −9.87186E−02  −7.81909E−01  −1.69310E+00 −7.90920E−01 −5.19895E−01 A6 −2.58026E−02  2.63247E+00 −8.49939E−01 5.85139E+00  4.98290E−01  4.24519E−01 A8 1.00186E+00 −5.88099E+01 3.03407E+01 −1.67037E+01   2.93540E−01 −3.12444E−01 A10 −4.23805E+00 5.75648E+02 −3.11976E+02  2.77661E+01 −3.15288E−01  1.42703E−01 A129.91922E+00 −3.00096E+03  1.45641E+03 −5.46620E+00  −9.66930E−02−2.76209E−02 A14 −1.17917E+01  7.91934E+03 −2.89774E+03  −2.59816E+01  1.67006E−01 −3.11872E−03 A16 8.87410E+00 −8.51578E+03  1.35594E+031.43091E+01 −4.43712E−02  1.34499E−03 A18 0.00000E+00 0.00000E+000.00000E+00 0.00000E+00  0.00000E+00  0.00000E+00 A20 0.00000E+000.00000E+00 0.00000E+00 0.00000E+00  0.00000E+00  0.00000E+00

The figures related to the profile curve lengths obtained based on Table1 and Table 2 are listed in the following table:

First embodiment (Reference wavelength: 555 nm) ARE ARE − 2(ARE/ ARE/ARE ½(HEP) value ½(HEP) HEP) % TP TP (%) 11 0.604 0.678 0.074 112.28%0.513 132.12% 12 0.506 0.511 0.005 101.08% 0.513 99.66% 21 0.509 0.5520.043 108.36% 0.336 164.03% 22 0.604 0.640 0.036 106.04% 0.336 190.42%31 0.604 0.606 0.002 100.28% 0.570 106.18% 32 0.604 0.607 0.003 100.50%0.570 106.41% ARS ARS − (ARS/ ARS/ ARS EHD value EHD EHD)% TP TP (%) 110.640 0.736 0.096 114.97% 0.513 143.37% 12 0.506 0.511 0.005 101.08%0.513 99.66% 21 0.509 0.552 0.043 108.36% 0.336 164.03% 22 0.710 0.7580.048 106.79% 0.336 225.48% 31 1.091 1.111 0.020 101.83% 0.570 194.85%32 1.340 1.478 0.138 110.32% 0.570 259.18%

The detail parameters of the first embodiment are listed in Table 1, inwhich the unit of the radius of curvature, thickness, and focal lengthare millimeter, and surface 0-10 indicates the surfaces of all elementsin the system in sequence from the object side to the image side. Table2 is the list of coefficients of the aspheric surfaces, in which A1-A20indicate the coefficients of aspheric surfaces from the first order tothe twentieth order of each aspheric surface. The following embodimentshave the similar diagrams and tables, which are the same as those of thefirst embodiment, so we do not describe it again.

Second Embodiment

As shown in FIG. 2A and FIG. 2B, an optical image capturing system 20 ofthe second embodiment of the present invention includes, along anoptical axis from an object side to an image side, a first lens 210, anaperture 200, a second lens 220, a third lens 230, an infrared raysfilter 270, an image plane 280, and an image sensor 290. FIG. 2C is atransverse aberration diagram at 0.7 field of view of the secondembodiment of the present application.

The first lens 210 has positive refractive power and is made of plastic.An object-side surface 212 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 214 thereof, whichfaces the image side, is a convex aspheric surface.

The second lens 220 has positive refractive power and is made ofplastic. An object-side surface 222 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 224thereof, which faces the image side, is a convex aspheric surface. Theobject-side surface 222 and the image-side surface 224 both have aninflection point.

The third lens 230 has negative refractive power and is made of plastic.An object-side surface 232, which faces the object side, is a convexaspheric surface, and an image-side surface 234, which faces the imageside, is a concave aspheric surface. The object-side surface 232 and theimage-side surface 234 both have an inflection point.

The infrared rays filter 270 is made of glass and between the third lens230 and the image plane 280. The infrared rays filter 270 gives nocontribution to the focal length of the system.

The parameters of the lenses of the second embodiment are listed inTable 3 and Table 4.

TABLE 3 f = 0.9994 mm; f/HEP = 2.0414; HAF = 38.8126 deg Radius ofcurvature Thickness Refractive Abbe Focal length Surface (mm) (mm)Material index number (mm) 0 Object 1E+18 600 1 1E+18 0.000 2 1^(st)lens 0.727726867 0.219 plastic 1.535 55.688 1.176 3 −4.260379542  −0.0104 Aperture 1E+18 0.174 5 2^(nd) lens −0.424865845  0.281 plastic 1.53555.688 0.555 6 −0.215521363  0.018 7 3^(rd) lens 2.013813486 0.145plastic 1.671 19.233 −0.659 8 0.354866619 0.091 9 Infrared 1E+18 0.145BK7_SCHOTT 1.517 64.137 rays filter 10 Image 1E+18 0.382 plane Referencewavelength: 555 nm; the position of blocking light: the clear apertureof the first surface is 0.279 mm; the clear aperture of the sixthsurface is 0.394 mm.

TABLE 4 Coefficients of the aspheric surfaces Surface 2 3 5 6 7 8 k−1.800681E+00  −6.992924E+02 −1.403136E+01 −4.656570E+00 −2.260879E+02−9.700554E+00 A4 2.677063E−01 −5.396646E+00 −1.866688E+01 −2.070022E+01−2.031115E+00 −4.405551E+00 A6 −1.317500E+02   1.812408E+02 1.555455E+02  4.621414E+02  4.529216E+00  3.366285E+01 A8 8.239498E+03−7.428431E+03  6.331536E+03 −7.915026E+03 −1.562223E+02 −2.414420E+02A10 −2.491739E+05   2.561140E+05 −3.443620E+05  8.611598E+04 8.160027E+02  1.042740E+03 A12 3.810196E+06 −6.429725E+06  7.038025E+06−5.683536E+05  3.964910E+02 −2.332303E+03 A14 −2.855733E+07  9.096302E+07 −5.829145E+07  2.295657E+06  6.281934E+03  1.883332E+03A16 8.303720E+07 −5.167201E+08  7.899108E+06 −5.219291E+06 −6.812604E+03−1.935801E+03 A18 0.000000E+00  0.000000E+00  2.342135E+09  3.996043E+06−1.776870E+06  1.072431E+04 A20 0.000000E+00  0.000000E+00 −7.817283E+09 1.008407E+07  7.235509E+06 −1.123293E+04

An equation of the aspheric surfaces of the second embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the second embodiment based on Table 3 and Table4 are listed in the following table:

Second embodiment (Reference wavelength: 555 nm) |f/f1| |f/f2| |f/f3||f1/f2| |f2/f3| TP1/TP2 0.84976 1.80068 1.51548 0.47191 1.18820 0.78118ΣPPR ΣNPR ΣPPR/|ΣNPR| IN12/f IN23/f TP2/TP3 2.36524 1.80068 1.313520.16344 0.01785 1.93665 TP2/(IN12 + TP2 + IN23) (TP1 + IN12)/TP2 (TP3 +IN23)/TP2 0.60774 0.57990 0.57990 HOS InTL HOS/HOI InS/HOS ODT % TDT %1.44450 0.82607 1.76159 0.85529 2.02164 1.46166 HVT21 HVT22 HVT31 HVT32HVT32/HOI HVT32/HOS 0     0      0.186513  0.334112 0.40745 0.23130f2/f3 CT1/CT2 CT2/CT3 (R1 − R2)/(R1 + R2) (R3 − R4)/(R3 + R4) (R5 −R6)/(R5 + R6) −0.8416  0.7812  1.9366  −1.4120  0.3269  0.7004  PLTAPSTA NLTA NSTA SLTA SSTA −0.006 mm −0.002 mm 0.018 mm 0.009 mm 0.005 mm0.008 mm

The results of the equations of the second embodiment based on Table 3and Table 4 are listed in the following table:

Values related to the inflection points of the second embodiment(Reference wavelength: 555 nm) HIF211 0.2337 HIF211/HOI 0.2850 SGI211−0.0700 |SGI211|/(|SGI211| + TP2) 0.2420 HIF221 0.2918 HIF221/HOI 0.3559SGI221 −0.1555 |SGI221|/(|SGI221| + TP2) 0.4149 HIF311 0.1024 HIF311/HOI0.1249 SGI311 0.0021 |SGI311|/(|SGI311| + TP3) 0.0094 HIF321 0.1426HIF321/HOI 0.1739 SGI321 0.0209 |SGI321|/(|SGI321| + TP3) 0.0870

The figures related to the profile curve lengths obtained based on Table3 and Table 4 are listed in the following table:

Second embodiment (Reference wavelength: 555 nm) ARE ARE − 2(ARE/ ARE/ARE ½(HEP) value ½(HEP) HEP) % TP TP (%) 11 0.245 0.249 0.00349 101.42%0.219 113.40% 12 0.230 0.229 −0.00018 99.92% 0.219 104.66% 21 0.2450.260 0.01529 106.24% 0.281 92.79% 22 0.245 0.275 0.03010 112.28% 0.28198.07% 31 0.245 0.245 −0.00007 99.97% 0.145 169.10% 32 0.245 0.2490.00358 101.46% 0.145 171.62% ARS ARS − (ARS/ ARS/ ARS EHD value EHDEHD)% TP TP (%) 11 0.268 0.273 0.00425 101.59% 0.219 124.28% 12 0.2300.229 −0.00018 99.92% 0.219 104.66% 21 0.267 0.284 0.01771 106.64% 0.281101.34% 22 0.394 0.466 0.07183 118.23% 0.281 165.96% 31 0.405 0.4180.01358 103.35% 0.145 288.66% 32 0.519 0.535 0.01554 102.99% 0.145369.08%

Third Embodiment

As shown in FIG. 3A and FIG. 3B, an optical image capturing system 30 ofthe third embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 310, an aperture300, a second lens 320, a third lens 330, an infrared rays filter 370,an image plane 380, and an image sensor 390. FIG. 3C is a transverseaberration diagram at 0.7 field of view of the third embodiment of thepresent application.

The first lens 310 has positive refractive power and is made of plastic.An object-side surface 312 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 314 thereof, whichfaces the image side, is a convex aspheric surface. The object-sidesurface 312 has an inflection point.

The second lens 320 has positive refractive power and is made ofplastic. An object-side surface 322 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 324thereof, which faces the image side, is a convex aspheric surface. Theobject-side surface 322 and the image-side surface 324 both have aninflection point.

The third lens 330 has negative refractive power and is made of plastic.An object-side surface 332 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 334 thereof, whichfaces the image side, is a concave aspheric surface. The object-sidesurface 332 and the image-side surface 334 both have an inflectionpoint.

The infrared rays filter 370 is made of glass and between the third lens330 and the image plane 380. The infrared rays filter 390 gives nocontribution to the focal length of the system.

The parameters of the lenses of the third embodiment are listed in Table5 and Table 6.

TABLE 5 f = 1.0044 mm; f/HEP = 2.2900; HAF = 38.9681 deg Radius ofcurvature Thickness Refractive Abbe Focal length Surface (mm) (mm)Material index number (mm) 0 Object 1E+18 600 1 1E+18 0.000 2 1^(st)lens 0.832964003 0.178 plastic 1.535 56.049 1.219 3 −2.814919865  −0.0114 Aperture 1E+18 0.192 5 2^(nd) lens −0.417824581  0.293 plastic 1.53556.049 0.512 6 −0.206205191  0.027 7 3^(rd) lens 2.866406055 0.141plastic 1.671 19.233 −0.608 8 0.35317029  0.091 9 Infrared 1E+18 0.145BK7_SCHOTT 1.517 64.137 rays filter 10 Image 1E+18 0.399 plane Referencewavelength: 555 nm; the position of blocking light: the clear apertureof the first surface is 0.270 mm; the clear aperture of the sixthsurface is 0.397 mm.

TABLE 6 Coefficients of the aspheric surfaces Surface 2 3 5 6 7 8 k3.772566E−02 2.482659E+01 −3.098837E+00 −4.311736E+00 −1.049793E+02−1.109668E+01 A4 1.208005E+00 −2.896627E+00  −8.069277E+00 −2.168556E+01−4.912998E+00 −5.429717E+00 A6 −1.089570E+02  8.479110E+01 −1.040864E+02 4.560235E+02  2.819338E+01  4.029712E+01 A8 4.350349E+03 −6.099807E+03  8.963435E+03 −7.777411E+03 −1.404312E+02 −2.521708E+02 A10−1.822628E+05  2.477301E+05 −3.224346E+05  8.680706E+04  4.589767E+02 1.002381E+03 A12 4.309733E+06 −5.903811E+06   6.697130E+06−5.845315E+05 −1.705293E+03 −2.214136E+03 A14 −4.914249E+07 7.627264E+07 −6.315750E+07  2.294314E+06 −6.215813E+03  1.748449E+03 A162.118351E+08 −4.153807E+08  −5.057425E+07 −4.241519E+06  1.370716E+05 1.874210E+02 A18 0.000000E+00 0.000000E+00  5.400457E+09  1.160409E+06−5.778384E+05  8.991064E+03 A20 0.000000E+00 0.000000E+00 −2.786234E+10 1.649246E+06  7.660832E+05 −1.983525E+04

An equation of the aspheric surfaces of the third embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the third embodiment based on Table 5 and Table6 are listed in the following table:

Third embodiment (Reference wavelength: 555 nm) |f/f1| |f/f2| |f/f3||f1/f2| |f2/f3| TP1/TP2 0.82387 1.96308 1.65130 0.41968 1.18881 0.60675ΣPPR ΣNPR ΣPPR/|ΣNPR| IN12/f IN23/f TP2/TP3 2.47516 1.96308 1.260860.17978 0.02683 2.08144 TP2/(IN12 + TP2 + IN23) (TP1 + IN12)/TP2 (TP3 +IN23)/TP3 0.58550 0.57236 0.57236 HOS InTL HOS/HOI InS/HOS ODT % TDT %1.45456 0.81936 1.77385 0.88557 −1.60044  2.40923 HVT21 HVT22 HVT31HVT32 HVT32/HOI HVT32/HOS 0     0     0.13641  0.304956 0.37190 0.20966f2/f3 CT1/CT2 CT2/CT3 (R1 − R2)/(R1 + R2) (R3 − R4)/(R3 + R4) (R5 −R6)/(R5 + R6) −0.8412  0.6067  2.0814  −1.8405  0.3391  0.7806  PLTAPSTA NLTA NSTA SLTA SSTA −0.002 mm 0.002 mm 0.003 mm −0.006 mm 0.001 mm0.004 mm

The results of the equations of the third embodiment based on Table 5and Table 6 are listed in the following table:

Values related to the inflection points of the third embodiment(Reference wavelength: 555 nm) HIF111 0.2123 HIF111/HOI 0.2589 SGI1110.025231 |SGI111|/(|SGI111| + TP1) 0.1242 HIF211 0.2348 HIF211/HOI0.2864 SGI211 −0.0769 |SGI211|/(|SGI211| + TP2) 0.3018 HIF221 0.2878HIF221/HOI 0.3510 SGI221 −0.1615 |SGI221|/(|SGI221| + TP2) 0.4760 HIF3110.0760 HIF311/HOI 0.0927 SGI311 0.0008 |SGI311|/(|SGI311| + TP3) 0.0047HIF321 0.1279 HIF321/HOI 0.1560 SGI321 0.017061 |SGI321|/(|SGI321| +TP3) 0.0875

The figures related to the profile curve lengths obtained based on Table5 and Table 6 are listed in the following table:

Third embodiment (Reference wavelength: 555 nm) ARE ARE − 2(ARE/ ARE/ARE ½(HEP) value ½(HEP) HEP) % TP TP (%) 11 0.220 0.221 0.00138 100.63%0.178 124.27% 12 0.211 0.212 0.00061 100.29% 0.178 119.00% 21 0.2200.232 0.01273 105.79% 0.293 79.27% 22 0.220 0.245 0.02486 111.32% 0.29383.41% 31 0.220 0.219 −0.00056 99.75% 0.141 155.57% 32 0.220 0.2220.00214 100.97% 0.141 157.48% ARS ARS − (ARS/ ARS/ ARS EHD value EHDEHD)% TP TP (%) 11 0.254 0.256 0.00175 100.69% 0.178 143.70% 12 0.2110.212 0.00061 100.29% 0.178 119.00% 21 0.256 0.276 0.02000 107.80% 0.29394.26% 22 0.397 0.471 0.07368 118.56% 0.293 160.57% 31 0.416 0.4250.00978 102.35% 0.141 302.11% 32 0.507 0.518 0.01037 102.04% 0.141367.50%

Fourth Embodiment

As shown in FIG. 4A and FIG. 4B, an optical image capturing system 40 ofthe fourth embodiment of the present invention includes, along anoptical axis from an object side to an image side, a first lens 410, anaperture 400, a second lens 420, a third lens 430, an infrared raysfilter 470, an image plane 480, and an image sensor 490. FIG. 4C is atransverse aberration diagram at 0.7 field of view of the fourthembodiment of the present application.

The first lens 410 has positive refractive power and is made of plastic.An object-side surface 412 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 414 thereof, whichfaces the image side, is a convex aspheric surface. The object-sidesurface 412 has an inflection point.

The second lens 420 has positive refractive power and is made ofplastic. An object-side surface 422 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 424thereof, which faces the image side, is a convex aspheric surface. Theobject-side surface 422 and the image-side surface 424 both have aninflection point.

The third lens 430 has negative refractive power and is made of plastic.An object-side surface 432 thereof, which faces the object side, is aconvex aspheric surface, and an image-side surface 434 thereof, whichfaces the image side, is a concave aspheric surface. The object-sidesurface 432 and the image-side surface 434 both have an inflectionpoint.

The infrared rays filter 470 is made of glass and between the third lens430 and the image plane 480. The infrared rays filter 470 gives nocontribution to the focal length of the system.

The parameters of the lenses of the fourth embodiment are listed inTable 7 and Table 8.

TABLE 7 f = 1.0060 mm; f/HEP = 2.2006; HAF = 38.7174 deg Radius ofcurvature Thickness Refractive Abbe Focal length Surface (mm) (mm)Material index number (mm) 0 Object 1E+18 600 1 1E+18 0.000 2 1^(st)lens 0.770326386 0.220 plastic 1.535 55.688 1.152 3 −2.823671437  −0.0124 Aperture 1E+18 0.189 5 2^(nd) lens −0.386310067  0.273 plastic 1.53555.688 0.712 6 −0.239522122  0.027 7 3^(rd) lens 0.862101725 0.140plastic 1.671 19.233 −0.864 8 0.325857965 0.091 9 Infrared 1E+18 0.145BK7_SCHOTT 1.517 64.137 rays filter 10 Image 1E+18 0.375 plane Referencewavelength: 555 nm; the position of blocking light: the clear apertureof the first surface is 0.274 mm.

TABLE 8 Coefficients of the aspheric surfaces Surface 2 3 5 6 7 8 k−4.453205E+00 8.666831E+01 −9.745885E+00 −4.018050E+00 −1.364895E+02−9.556921E+00 A4 −2.137429E−01 −6.404665E+00  −1.511289E+01−2.152573E+01 −5.411161E+00 −5.937930E+00 A6 −4.120952E+01 2.774083E+02−7.763955E+01  4.550446E+02  3.233613E+01  4.579964E+01 A8  5.136848E+03−7.825239E+03   9.953576E+03 −7.730333E+03 −1.152236E+02 −2.670342E+02A10 −2.262997E+05 1.824968E+05 −3.201198E+05  8.668565E+04  2.408465E+02 9.629067E+02 A12  4.393813E+06 −5.758541E+06   6.593271E+06−5.773985E+05 −2.076896E+03 −2.099876E+03 A14 −3.971757E+07 1.204100E+08−6.521355E+07  2.273431E+06 −6.990328E+03  2.131671E+03 A16 1.360585E+08 −9.359677E+08  −2.988393E+07 −4.629013E+06  1.272635E+05 1.236986E+02 A18  0.000000E+00 0.000000E+00  5.408610E+09  1.455364E+06−5.202241E+05 −2.793754E+03 A20  0.000000E+00 0.000000E+00 −2.753335E+10 1.537597E+07  1.095592E+06  6.572292E+03

An equation of the aspheric surfaces of the fourth embodiment is thesame as that of the first embodiment, and the definitions are the sameas well.

The exact parameters of the fourth embodiment based on Table 7 and Table8 are listed in the following table:

Fourth embodiment (Reference wavelength: 555 nm) |f/f1| |f/f2| |f/f3||f1/f2| |f2/f3| TP1/TP2 0.87318 1.41315 1.16395 0.61790 1.21410 0.80485ΣPPR ΣNPR ΣPPR/|ΣNPR| IN12/f IN23/f TP2/TP3 2.03713 1.41315 1.441550.17554 0.02666 1.95028 TP2/(IN12 + TP2 + IN23) (TP1 + IN12)/TP2 (TP3 +IN23)/TP2 0.57303 0.61100 0.61100 HOS InTL HOS/HOI InS/HOS ODT % TDT %1.44716 0.83617 1.76483 0.85645 2.41996 1.28326 HVT21 HVT22 HVT31 HVT32HVT32/HOI HVT32/HOS 0     0      0.166775  0.315705 0.3850  0.2182 f2/f3 CT1/CT2 CT2/CT3 (R1 − R2)/(R1 + R2) (R3 − R4)/(R3 + R4) (R5 −R6)/(R5 + R6) −0.8237  −1.3330  0.8049  1.9503  −1.7503  0.2345  PLTAPSTA NLTA NSTA SLTA SSTA −0.004 mm 0 mm 0.010 mm 0.001 mm −0.003 mm 0 mm

The results of the equations of the fourth embodiment based on Table 7and Table 8 are listed in the following table:

Values related to the inflection points of the fourth embodiment(Reference wavelength: 555 nm) HIF111 0.2338 HIF111/HOI 0.2851 SGI1110.031226 |SGI111|/(|SGI111| + TP1) 0.1244 HIF211 0.2286 HIF211/HOI0.2788 SGI211 −0.07301 |SGI211|/(|SGI211| + TP2) 0.2494 HIF221 0.2731HIF221/HOI 0.3330 SGI221 −0.14124 |SGI221|/(|SGI221| + TP2) 0.3913HIF311 0.0791 HIF311/HOI 0.0965 SGI311 0.002744 |SGI311|/(|SGI311| +TP3) 0.0123 HIF321 0.1285 HIF321/HOI 0.1567 SGI321 0.01862|SGI321|/(|SGI321| + TP3) 0.0781

The figures related to the profile curve lengths obtained based on Table7 and Table 8 are listed in the following table:

Fourth embodiment (Reference wavelength: 555 nm) ARE ARE − 2(ARE/ ARE/ARE ½(HEP) value ½(HEP) HEP) % TP TP (%) 11 0.229 0.230 0.00151 100.66%0.220 104.88% 12 0.217 0.218 0.00078 100.36% 0.220 99.12% 21 0.229 0.2430.01396 106.10% 0.273 88.97% 22 0.229 0.255 0.02567 111.21% 0.273 93.26%31 0.229 0.228 −0.00077 99.66% 0.140 163.00% 32 0.229 0.231 0.00244101.07% 0.140 165.30% ARS ARS − (ARS/ ARS/ ARS EHD value EHD EHD)% TP TP(%) 11 0.266 0.268 0.00228 100.86% 0.220 122.09% 12 0.217 0.218 0.00078100.36% 0.220 99.12% 21 0.262 0.281 0.01918 107.32% 0.273 102.95% 220.344 0.404 0.05991 117.42% 0.273 147.88% 31 0.427 0.445 0.01740 104.07%0.140 317.62% 32 0.538 0.560 0.02205 104.10% 0.140 400.29%

Fifth Embodiment

As shown in FIG. 5A and FIG. 5B, an optical image capturing system 50 ofthe fifth embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 510, an aperture500, a second lens 520, a third lens 530, an infrared rays filter 570,an image plane 580, and an image sensor 590. FIG. 5C is a transverseaberration diagram at 0.7 field of view of the fifth embodiment of thepresent application.

The first lens 510 has positive refractive power and is made of plastic.An object-side surface 512, which faces the object side, is a convexaspheric surface, and an image-side surface 514, which faces the imageside, is a convex aspheric surface. The object-side surface 512 has aninflection point.

The second lens 520 has positive refractive power and is made ofplastic. An object-side surface 522 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 524thereof, which faces the image side, is a convex aspheric surface. Theobject-side surface 522 and the image-side surface 524 both have aninflection point.

The third lens 530 has negative refractive power and is made of plastic.An object-side surface 532, which faces the object side, is a convexaspheric surface, and an image-side surface 534, which faces the imageside, is a concave aspheric surface. The object-side surface 532 has aninflection point, and the image-side surface 534 has an inflectionpoint.

The infrared rays filter 570 is made of glass and between the third lens530 and the image plane 580. The infrared rays filter 570 gives nocontribution to the focal length of the system.

The parameters of the lenses of the fifth embodiment are listed in Table9 and Table 10.

TABLE 9 f = 0.9906 mm; f/HEP = 2.2004; HAF = 39.3625 deg Radius ofcurvature Thickness Refractive Abbe Focal length Surface (mm) (mm)Material index number (mm) 0 Object 1E+18 600 1 1E+18 0.000 2 1^(st)lens 0.755560397 0.220 plastic 1.535 55.69 1.164 3 −3.24140231  −0.012 4Aperture 1E+18 0.170 5 2^(nd) lens −0.385118635  0.269 plastic 1.56737.32 0.655 6 −0.237712279  0.027 7 3^(rd) lens 1.219426548 0.141plastic 1.661 20.37 −0.831 8 0.363399746 0.091 9 Infrared 1E+18 0.145BK7_SCHOTT 1.517 64.14 rays filter 10 Image 1E+18 0.395 plane Referencewavelength: 555 nm; the position of blocking light: the clear apertureof the first surface is 0.254 mm.

TABLE 10 Coefficients of the aspheric surfaces Surface 2 3 5 6 7 8 k−8.631669E−01  1.163816E+02 −1.422326E+01 −3.900128E+00 −3.887160E+02−1.101600E+01 A4 6.436758E−01 −5.315387E+00  −2.455783E+01 −2.061046E+01−3.063321E+00 −4.563956E+00 A6 −1.596018E+02  2.397679E+02  1.760403E+02 4.541373E+02  2.279800E+01  3.798765E+01 A8 8.206267E+03 −9.011746E+03  7.924923E+03 −7.925713E+03 −1.605901E+02 −2.538782E+02 A10−2.409029E+05  2.309418E+05 −3.556752E+05  8.742615E+04  4.024252E+02 1.006696E+03 A12 3.815874E+06 −5.724754E+06   6.763793E+06−5.637757E+05 −1.022838E+03 −2.139985E+03 A14 −3.058215E+07 1.150791E+08 −5.777439E+07  2.305535E+06  1.137147E+04  1.678984E+03 A169.651955E+07 −1.019396E+09   4.515604E+07 −6.075618E+06  5.001461E+04−7.132659E+02 A18 0.000000E+00 0.000000E+00  3.016566E+09 −8.395059E+06−1.233233E+06  5.324760E+03 A20 0.000000E+00 0.000000E+00 −1.714271E+10 1.332777E+08  3.972734E+06 −4.700860E+03

An equation of the aspheric surfaces of the fifth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the fifth embodiment based on Table 9 and Table10 are listed in the following table:

Fifth embodiment (Reference wavelength: 555 nm) |f/f1| |f/f2| |f/f3||f1/f2| |f2/f3| TP1/TP2 0.85108 1.51292 1.19264 0.56254 1.26855 0.81754ΣPPR ΣNPR ΣPPR/|ΣNPR| IN12/f IN23/f TP2/TP3 2.04371 1.51292 1.350840.15995 0.02713 1.91277 TP2/(IN12 + TP2 + IN23) (TP1 + IN12)/TP2 (TP3 +IN23)/TP2 0.59206 0.62272 0.62272 HOS InTL HOS/HOI InS/HOS ODT % TDT %1.44608 0.81477 1.76351 0.85625 2.11322 0.73818 HVT21 HVT22 HVT31 HVT32HVT32/HOI HVT32/HOS 0     0      0.173202 0.34031 0.4150  0.2353  f2/f3CT1/CT2 CT2/CT3 (R1 − R2)/(R1 + R2) (R3 − R4)/(R3 + R4) (R5 − R6)/(R5 +R6) −0.7883  −1.4013  0.8175  1.9128  −1.6079  0.2367  PLTA PSTA NLTANSTA SLTA SSTA −0.037 mm −0.032 mm 0.009 nun 0.004 mm −0.018 mm −0.014nun

The results of the equations of the fifth embodiment based on Table 9and Table 10 are listed in the following table:

Values related to the inflection points of the fifth embodiment(Reference wavelength: 555 nm) HIF111 0.2366 HIF111/HOI 0.2885 SGI1110.0334 |SGI111|/(|SGI111| + TP1) 0.1318 HIF211 0.2226 HIF211/HOI 0.2715SGI211 −0.0727 |SGI211|/(|SGI211| + TP2) 0.2485 HIF221 0.2816 HIF221/HOI0.3434 SGI221 −0.1490 |SGI221|/(|SGI221| + TP2) 0.4039 HIF311 0.0777HIF311/HOI 0.0947 SGI311 0.0018 |SGI311|/(|SGI311| + TP3) 0.0081 HIF3210.1382 HIF321/HOI 0.1685 SGI321 0.0191 |SGI321|/(|SGI321| + TP3) 0.0798

The figures related to the profile curve lengths obtained based on Table9 and Table 10 are listed in the following table:

Fifth embodiment (Reference wavelength: 555 nm) ARE ARE − 2(ARE/ ARE/ARE ½(HEP) value ½(HEP) HEP) % TP TP (%) 11 0.225 0.228 0.00221 100.98%0.220 103.53% 12 0.211 0.212 0.00030 100.14% 0.220 96.25% 21 0.225 0.2410.01555 106.90% 0.269 89.60% 22 0.225 0.250 0.02502 111.10% 0.269 93.12%31 0.225 0.225 −0.00037 99.84% 0.141 160.06% 32 0.225 0.228 0.00266101.18% 0.141 162.22% ARS ARS − (ARS/ ARS/ ARS EHD value EHD EHD)% TP TP(%) 11 0.250 0.252 0.00278 101.11% 0.220 114.74% 12 0.211 0.212 0.00030100.14% 0.220 96.25% 21 0.250 0.271 0.02016 108.05% 0.269 100.58% 220.336 0.397 0.06125 118.23% 0.269 147.72% 31 0.426 0.438 0.01116 102.62%0.141 311.23% 32 0.537 0.551 0.01420 102.65% 0.141 391.72%

Sixth Embodiment

As shown in FIG. 6A and FIG. 6B, an optical image capturing system 60 ofthe sixth embodiment of the present invention includes, along an opticalaxis from an object side to an image side, a first lens 610, an aperture600, a second lens 620, a third lens 630, an infrared rays filter 670,an image plane 680, and an image sensor 690. FIG. 6C is a transverseaberration diagram at 0.7 field of view of the sixth embodiment of thepresent application.

The first lens 610 has positive refractive power and is made of plastic.An object-side surface 612, which faces the object side, is a convexaspheric surface, and an image-side surface 614, which faces the imageside, is a convex aspheric surface. The object-side surface 612 has aninflection point.

The second lens 620 has positive refractive power and is made ofplastic. An object-side surface 622 thereof, which faces the objectside, is a concave aspheric surface, and an image-side surface 624thereof, which faces the image side, is a convex aspheric surface. Theobject-side surface 622 and the image-side surface 624 both have aninflection point.

The third lens 630 has negative refractive power and is made of plastic.An object-side surface 632, which faces the object side, is a convexaspheric surface, and an image-side surface 634, which faces the imageside, is a concave aspheric surface. The object-side surface 632 and theimage-side surface 634 both have an inflection point.

The infrared rays filter 670 is made of glass and between the third lens630 and the image plane 680. The infrared rays filter 670 gives nocontribution to the focal length of the system.

The parameters of the lenses of the sixth embodiment are listed in Table11 and Table 12.

TABLE 11 f = 0.9906 mm; f/HEP = 2.2004; HAF = 39.3625 deg Radius ofcurvature Thickness Refractive Abbe Focal length Surface (mm) (mm)Material index number (mm) 0 Object 1E+18 600 1 1E+18 0.000 2 1^(st)lens 0.769102954 0.220 plastic 1.535 56.05 1.164 3 −3.046925625  −0.0124 Aperture 1E+18 0.172 5 2^(nd) lens −0.36535734  0.261 plastic 1.53556.05 0.655 6 −0.225615434  0.027 7 3^(rd) lens 1.531166685 0.156plastic 1.681 18.15 −0.831 8 0.404291934 0.091 9 Infrared 1E+18 0.145glass 1.517 64.14 rays filter 10 Image 1E+18 0.387 plane Referencewavelength: 555 nm; the position of blocking light: the clear apertureof the first surface is 0.248 mm.

TABLE 12 Coefficients of the aspheric surfaces Surface 2 3 5 6 7 8 k−1.119534E+00  6.294409E+01 −1.351619E+01 −3.613406E+00 −8.737135E+02−1.301283E+01 A4 8.339102E−01 −5.688205E+00  −2.547838E+01 −2.060370E+01−2.716688E+00 −4.611446E+00 A6 −1.672885E+02  2.446196E+02  1.928442E+02 4.550234E+02  1.954882E+01  3.833127E+01 A8 8.366265E+03 −8.682428E+03  8.071724E+03 −7.924582E+03 −1.514013E+02 −2.550315E+02 A10−2.405572E+05  2.311054E+05 −3.544213E+05  8.761490E+04  4.698151E+02 1.013026E+03 A12 3.786031E+06 −5.929954E+06   6.762406E+06−5.613619E+05 −1.163807E+03 −2.139003E+03 A14 −3.047081E+07 1.111258E+08 −5.807419E+07  2.331151E+06  1.043366E+04  1.552384E+03 A169.731367E+07 −8.988330E+08   3.727936E+07 −6.360894E+06  4.109810E+04−6.354913E+02 A18 0.000000E+00 0.000000E+00  2.952325E+09 −8.604448E+06−1.226384E+06  6.433356E+03 A20 0.000000E+00 0.000000E+00 −1.558206E+10 1.289231E+08  4.140658E+06 −6.787073E+03

An equation of the aspheric surfaces of the sixth embodiment is the sameas that of the first embodiment, and the definitions are the same aswell.

The exact parameters of the sixth embodiment based on Table 11 and Table12 are listed in the following table:

Sixth embodiment (Reference wavelength: 555 nm) |f/f1| |f/f2| |f/f3||f1/f2| |f2/f3| TP1/TP2 0.85108 1.51292 1.19264 0.56254 1.26855 0.81754ΣPPR ΣNPR ΣPPR/|ΣNPR| IN12/f IN23/f TP2/TP3 2.04371 1.51292 1.350840.15995 0.02713 1.91277 TP2/(IN12 + TP2 + IN23) (TP1 + IN12)/TP2 (TP3 +IN23)/TP2 0.59206 0.62272 0.62272 HOS InTL HOS/HOI InS/HOS ODT % TDT %1.44608 0.81477 1.76351 0.85625 2.11322 0.73818 HVT21 HVT22 HVT31 HVT32HVT32/HOI HVT32/HOS 0     0      0.173202 0.34031 0.4150  0.2353  f2/f3CT1/CT2 CT2/CT3 (R1 − R2)/(R1 + R2) (R3 − R4)/(R3 + R4) (R5 − R6)/(R5 +R6) −0.7883  0.8175  1.9128  −1.6079  0.2367  0.5408  PLTA PSTA NLTANSTA SLTA SSTA −0.023 mm −0.019 mm 0.008 mm 0.001 mm −0.008 mm −0.005 mm

The results of the equations of the sixth embodiment based on Table 11and Table 12 are listed in the following table:

Values related to the inflection points of the sixth embodiment(Reference wavelength: 555 nm) HIF111 0.2366 HIF111/HOI 0.2885 SGI1110.0334 |SGI111|/(|SGI111| + TP1) 0.1318 HIF211 0.2226 HIF211/HOI 0.2715SGI211 −0.0727 |SGI211|/(|SGI211| + TP2) 0.2485 HIF221 0.2816 HIF221/HOI0.3434 SGI221 −0.1490 |SGI221|/(|SGI221| + TP2) 0.4039 HIF311 0.0777HIF311/HOI 0.0947 SGI311 0.0018 |SGI311|/(|SGI311| + TP3) 0.0081 HIF3210.1382 HIF321/HOI 0.1685 SGI321 0.0191 |SGI321|/(|SGI321| + TP3) 0.0798

The figures related to the profile curve lengths obtained based on Table11 and Table 12 are listed in the following table:

Sixth embodiment (Reference wavelength: 555 nm) ARE ARE − 2(ARE/ ARE/ARE ½(HEP) value ½(HEP) HEP) % TP TP (%) 11 0.224 0.226 0.00155 100.69%0.220 102.57% 12 0.210 0.211 0.00061 100.29% 0.220 95.79% 21 0.224 0.2390.01481 106.61% 0.261 91.42% 22 0.224 0.250 0.02556 111.41% 0.261 95.54%31 0.224 0.223 −0.00091 99.59% 0.156 143.10% 32 0.224 0.225 0.00144100.64% 0.156 144.61% ARS ARS − (ARS/ ARS/ ARS EHD value EHD EHD)% TP TP(%) 11 0.242 0.245 0.00298 101.23% 0.220 111.44% 12 0.210 0.211 0.00061100.29% 0.220 95.79% 21 0.248 0.268 0.01975 107.95% 0.261 102.64% 220.328 0.388 0.05974 118.19% 0.261 148.61% 31 0.407 0.414 0.00718 101.77%0.156 265.51% 32 0.511 0.522 0.01083 102.12% 0.156 334.84%

It must be pointed out that the embodiments described above are onlysome embodiments of the present invention. All equivalent structureswhich employ the concepts disclosed in this specification and theappended claims should fall within the scope of the present invention.

What is claimed is:
 1. An optical image capturing system, in order alongan optical axis from an object side to an image side, comprising: afirst lens having positive refractive power; a second lens havingpositive refractive power; a third lens having refractive power; and animage plane; wherein the optical image capturing system having a totalof the three lenses with refractive power; each lens among the firstlens to the third lens has an object-side surface, which faces theobject side, and an image-side surface, which faces the image side;wherein the optical image capturing system satisfies:1≤f/HEP≤10;0 deg<HAF≤40 deg; and0.9≤2(ARE/HEP)≤2.0; wherein f is a focal length of the optical imagecapturing system; HEP is an entrance pupil diameter of the optical imagecapturing system; HAF is a half of a maximum view angle of the opticalimage capturing system; for any surface of any lens, ARE is a profilecurve length measured from a start point where the optical axis passestherethrough, along a surface profile thereof, and finally to acoordinate point of a perpendicular distance where is a half of theentrance pupil diameter away from the optical axis.
 2. The optical imagecapturing system of claim 1, wherein the third lens has negativerefractive power.
 3. The optical image capturing system of claim 1,wherein the image-side surface of the first lens is a convex surface. 4.The optical image capturing system of claim 1, wherein the optical imagecapturing system further satisfies:PLTA≤100 μm;PSTA≤100 μm;NLTA≤100 μm;NSTA≤100 μm;SLTA≤100 μm;SSTA≤100 μm; and|TDT|<100%; wherein TDT is a TV distortion; HOI is a maximum height forimage formation perpendicular to the optical axis on the image plane;PLTA is a transverse aberration at 0.7 HOI on the image plane in thepositive direction of a tangential fan of the optical image capturingsystem after a longest operation wavelength passing through an edge ofthe aperture; PSTA is a transverse aberration at 0.7 HOI on the imageplane in the positive direction of the tangential fan after a shortestoperation wavelength passing through the edge of the aperture; NLTA is atransverse aberration at 0.7 HOI on the image plane in the negativedirection of the tangential fan after the longest operation wavelengthpassing through the edge of the aperture; NSTA is a transverseaberration at 0.7 HOI on the image plane in the negative direction ofthe tangential fan after the shortest operation wavelength passingthrough the edge of the aperture; SLTA is a transverse aberration at 0.7HOI on the image plane of a sagittal fan of the optical image capturingsystem after the longest operation wavelength passing through the edgeof the aperture; SSTA is a transverse aberration at 0.7 HOI on the imageplane of a sagittal fan after the shortest operation wavelength passingthrough the edge of the aperture.
 5. The optical image capturing systemof claim 1, wherein the optical image capturing system furthersatisfies:0.9≤ARS/EHD≤2.0; wherein, for any surface of any lens, EHD is a maximumeffective half diameter thereof, and ARS is a profile curve lengthmeasured from a start point where the optical axis passes therethrough,along a surface profile thereof, and finally to an end point of themaximum effective half diameter thereof.
 6. The optical image capturingsystem of claim 1, wherein the optical image capturing system furthersatisfies:0 mm<HOS≤1.5 mm; wherein HOS is a distance between an object-sidesurface of the first lens and the image plane on the optical axis. 7.The optical image capturing system of claim 1, wherein the optical imagecapturing system further satisfies:0.05≤ARE31/TP3≤25; and0.05≤ARE32/TP3≤25; wherein ARE31 is a profile curve length measured froma start point where the optical axis passes the object-side surface ofthe third lens, along a surface profile of the object-side surface ofthe third lens, and finally to a coordinate point of a perpendiculardistance where is a half of the entrance pupil diameter away from theoptical axis; ARE32 is a profile curve length measured from a startpoint where the optical axis passes the image-side surface of the thirdlens, along a surface profile of the image-side surface of the thirdlens, and finally to a coordinate point of a perpendicular distancewhere is a half of the entrance pupil diameter away from the opticalaxis; TP3 is a thickness of the third lens on the optical axis.
 8. Theoptical image capturing system of claim 1, wherein the optical imagecapturing system further satisfies:1.6≤f1/f2≤2.5; wherein f1 is a focal length of the first lens, and f2 isa focal length of the second lens.
 9. The optical image capturing systemof claim 1, further comprising an aperture, wherein the optical imagecapturing system further satisfies:0.2≤InS/HOS≤1.1; wherein InS is a distance between the aperture and theimage plane on the optical axis; HOS is a distance between anobject-side surface of the first lens and the image plane on the opticalaxis.
 10. An optical image capturing system, in order along an opticalaxis from an object side to an image side, comprising: a first lenshaving positive refractive power; a second lens having positiverefractive power; a third lens having refractive power; and an imageplane; wherein the optical image capturing system having a total of thethree lenses with refractive power; at least a surface of each of atleast one lens among the first lens to the third lens has at least aninflection point; each lens among the first lens to the third lens hasan object-side surface, which faces the object side, and an image-sidesurface, which faces the image side; the object-side surface of thefirst lens is convex on the optical axis, and the image-side surface ofthe first lens is convex on the optical axis; wherein the optical imagecapturing system satisfies:1≤f/HEP≤10;0 deg<HAF≤40 deg; and0.9≤2(ARE/HEP)≤2.0; wherein f is a focal length of the optical imagecapturing system; HEP is an entrance pupil diameter of the optical imagecapturing system; HAF is a half of a maximum view angle of the opticalimage capturing system; for any surface of any lens, ARE is a profilecurve length measured from a start point where the optical axis passestherethrough, along a surface profile thereof, and finally to acoordinate point of a perpendicular distance where is a half of theentrance pupil diameter away from the optical axis.
 11. The opticalimage capturing system of claim 10, wherein the optical image capturingsystem further satisfies:0.9≤ARS/EHD≤2.0; wherein, for any surface of any lens, EHD is a maximumeffective half diameter thereof, and ARS is a profile curve lengthmeasured from a start point where the optical axis passes therethrough,along a surface profile thereof, and finally to an end point of themaximum effective half diameter thereof.
 12. The optical image capturingsystem of claim 10, wherein at least one surface of each of at least twolenses among the first lens to the third lens has at least an inflectionpoint.
 13. The optical image capturing system of claim 10, wherein theoptical image capturing system further satisfies:−2.5≤f1/f3≤−1; wherein f1 is a focal length of the first lens, and f3 isa focal length of the third lens.
 14. The optical image capturing systemof claim 10, wherein the optical image capturing system furthersatisfies:−0.9≤f2/f3≤−0.7; wherein f2 is a focal length of the second lens, and f3is a focal length of the third lens.
 15. The optical image capturingsystem of claim 10, wherein the optical image capturing system furthersatisfies:0.5≤TP1/TP2≤1; wherein TP1 is a thickness of the first lens on theoptical axis; TP2 is a thickness of the second lens on the optical axis.16. The optical image capturing system of claim 10, wherein the opticalimage capturing system further satisfies:1.5≤TP2/TP3≤2.5; wherein TP2 is a thickness of the second lens on theoptical axis; TP3 is a thickness of the third lens on the optical axis.17. The optical image capturing system of claim 10, wherein the opticalimage capturing system further satisfies:−2≤(R1−R2)/(R1+R2)≤−1; wherein R1 is a radius of curvature of theobject-side surface of the first lens, and R2 is a radius of curvatureof the image-side surface of the first lens.
 18. The optical imagecapturing system of claim 10, wherein the optical image capturing systemfurther satisfies:0.2≤(R3−R4)/(R3+R4)≤0.4; wherein R3 is a radius of curvature of theobject-side surface of the second lens, and R4 is a radius of curvatureof the image-side surface of the second lens.
 19. The optical imagecapturing system of claim 10, wherein the optical image capturing systemfurther satisfies:0.4≤(R5−R6)/(R5+R6)≤0.8; wherein R5 is a radius of curvature of theobject-side surface of the third lens, and R6 is a radius of curvatureof the image-side surface of the third lens.
 20. An optical imagecapturing system, in order along an optical axis from an object side toan image side, comprising: a first lens having positive refractivepower; a second lens having positive refractive power; a third lenshaving negative refractive power; and an image plane; wherein theoptical image capturing system having a total of the three lenses havingrefractive power; each lens among the first lens to the third lens hasan object-side surface, which faces the object side, and an image-sidesurface, which faces the image side; the object-side surface of thefirst lens is convex on the optical axis, and the image-side surface ofthe first lens is convex on the optical axis; each of the object-sidesurface and the image-side surface among the second lens to the thirdlens has at least an inflection point thereon; wherein the optical imagecapturing system satisfies:1≤f/HEP≤2.4;10 deg≤HAF≤40 deg;0.9≤2(ARE/HEP)≤2.0; and1≤HOS/HOI≤1.8; wherein f is a focal length of the optical imagecapturing system; HEP is an entrance pupil diameter of the optical imagecapturing system; HOS is a distance between an object-side surface ofthe first lens and the image plane on the optical axis; HAF is a half ofa maximum view angle of the optical image capturing system; HOI is amaximum height for image formation perpendicular to the optical axis onthe image plane; for any surface of any lens, ARE is a profile curvelength measured from a start point where the optical axis passestherethrough, along a surface profile thereof, and finally to acoordinate point of a perpendicular distance where is a half of theentrance pupil diameter away from the optical axis.
 21. The opticalimage capturing system of claim 20, wherein the optical image capturingsystem further satisfies:0.9≤ARS/EHD≤2.0; wherein, for any surface of any lens, EHD is a maximumeffective half diameter thereof, ARS is a profile curve length measuredfrom a start point where the optical axis passes therethrough, along asurface profile thereof, and finally to an end point of the maximumeffective half diameter thereof.
 22. The optical image capturing systemof claim 20, wherein the optical image capturing system furthersatisfies:−2.5≤f1/f3≤−1; wherein f1 is a focal length of the first lens, and f3 isa focal length of the third lens.
 23. The optical image capturing systemof claim 20, wherein the optical image capturing system furthersatisfies:−0.9≤f2/f3≤−0.7; wherein f2 is a focal length of the second lens, and f3is a focal length of the third lens.
 24. The optical image capturingsystem of claim 20, wherein the optical image capturing system furthersatisfies:0.5≤TP1/TP2≤1; wherein TP1 is a thickness of the first lens on theoptical axis; TP2 is a thickness of the second lens on the optical axis.25. The optical image capturing system of claim 20, further comprisingan aperture an image sensor, and a driving module, wherein the imagesensor is disposed on the image plane; the driving module is coupledwith the lenses to move the lenses; the optical image capturing systemfurther satisfies:0.2≤InS/HOS≤1.1; wherein InS is a distance between the aperture and theimage plane.